350 



be as little as 4, and in those fed for curing there will be more than 

 4 times as much fat as nitrogenous compounds. 



The fat of the bones constituted but a small proportion of that of 

 the entire carcasses ; whilst the nitrogen of the bones amounted to 

 a considerable proportion of the whole. 



It appeared, that whilst the per-centage (in the carcasses) of both 

 mineral and nitrogenous matters decreased as the animals matured, 

 that of the fat very considerably increased. The increase in the 

 per-centage of fat was much more than equivalent to the collective 

 decrease in that of the other solid matters, that is to say, as the 

 animal matures, the per-centage in its carcass, of total dry substance 

 and especially of fat much increases. 



The carcass of the calf contained 62-^ per cent., that of the lean 

 sheep 57^rd per cent., that of the lean pig 55^rd, and that of the 

 half-fat ox 54 per cent, of water. In the carcass of the fat ox 

 there were 45^ per cent., iii that of the fat lamb 48f rds per cent., 

 in that of the half-fat old sheep 49frds per cent., in that of the 

 fat sheep 39f rds per cent., in that of the very fat sheep only 33 

 per cent., and in that of the moderately fattened pig only 38^ per 

 cent, of water. The bones of the carcasses contained a less propor- 

 tion of water than the collective soft or edible portions. 



It is inferred, that the average of carcasses of well-fattened oxen 

 will contain 50 per cent., or rather more, of dry substance ; that 

 those of properly fattened sheep will contain more still say 55 to 

 60 per cent. ; those of pigs killed for fresh pork rather more than 

 those of sheep ; whilst the sides of pigs fed and slaughtered for 

 curing will be drier still. Lamb-carcasses would seem to contain a 

 smaller proportion of dry substance than those of either moderately 

 fattened oxen, sheep, or pigs. Their proportion of bone was also 

 comparatively high. Veal appeared to be the moistest of all. The 

 carcass of the calf experimented upon, though the animal was con- 

 sidered to be well fattened, contained only 37f per cent, of dry 

 substance. Its proportion of bone was also higher than in any of 

 the other animals. 



Next as to the composition of the collective offal parts (excluding 

 the contents of stomachs and intestines), the results showed that 

 in every case the per-centage of nitrogenous substance was greater, 

 and that of the fat very much less, than in the collective carcass parts. 



